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"It's a miracle, I guess," says Kisielewski, whose potentially fatal illness was diagnosed thanks to a chance encounter with his best friend's mother and a Cooper University Hospital neurosurgeon.

Talk about right place, right time.

The 20-year-old Runnemede resident, who played football for Triton Regional High School, was unaware of the benign tumor growing on his pituitary gland.

The resulting high levels of human growth hormone in his system were causing acromegaly, a condition in which the hands, feet, and facial features gradually enlarge.

That's what got the attention of neurosurgeon Allen R. Turtz late one April afternoon when Kisielewski was at Cooper with a crew from the allRisk emergency-response company, repairing water damage.

"He looked like someone with acromegaly," says Turtz, who was at first reluctant to approach the young man.

Then he noticed Kisielewski speaking to surgical technician Renee Bekier. Her son Bill is the young man's best friend.

So Turtz asked for an introduction.

"It was a very unusual way to get started on a case," observes the 53-year-old Cherry Hill resident, who informally examined Kisielewski's hands and head and asked a number of questions.

"I think, somehow, God put the three of us all together," says Bekier, who is 49 and lives in Bellmawr. "It was meant to be. Dr. Turtz is an expert on pituitary tumors."

It's not unusual for acromegaly - which ultimately damages the heart, eyes and other organs - to go undetected for years.

In Kisielewski's case, the growth of the tumor coincided with the growth spurt of puberty. And while he grew taller than his parents and his older brother, Mike, 23, his paternal grandfather had been tall.

"He would ask me, 'Why am I so tall?' and I would just tell him, 'You got the gene,' " says his mother, Dolores, a 51-year-old Navy employee.

I'm sitting in the big, bright kitchen of the Kisielewski home with Matthew, a typical 20-year-old, except for being 6-foot-5. Family members bustle in and out as we chat.

"I had always been really little, and my junior year I think I grew a foot and a half," he says. "Everybody at my high school thought I was on steroids. At the gym, everybody would look at me."

An increase in strength - he could bench-press 350 pounds - also was accompanied by less salutary changes, including excessive sweating and snoring.

As the growth hormones gradually reached three times the normal level, Kisielewski's personality also changed. He became moody and antisocial. "I got (angry) easily," he says.

"He became the Tasmanian devil," says his father, Mike, a 52-year-old labor union agent. "Now he's Bambi. Dr. Turtz gave my son back to me."

After the hallway encounter, Turtz suggested Kisielewski undergo blood tests, which showed elevated growth hormone levels. Brain scans revealed a large tumor, and surgery was scheduled for May 10.

The tumor was benign; Kisielewski's recovery was relatively painless, uneventful - and rapid. Almost immediately, his face lost its swollen appearance.